This is an Antique 1920 and below don’t know exact year Double sided German Harmonica One side plays in the C scale the other side is an F scale There is writing on both sides one side says Koch’s Fidelioss Registered see pictures and the other side is written in German and says Hochste Auszeichnungen ands Koch Germany Trade Mark this is written on other side Looks very old but still plays beautifully Has ware but is intack and plays great See pictures Offer welcome